Motor stator rubber coating injection mold

Abstract

The utility model discloses a motor stator rubber coating injection mold which comprises a fixed mold base, an injection molding assembly is installed in the fixed mold base, and a mold closing assembly is installed on the top wall of the fixed mold base. According to the motor stator rubber coating injection mold, the injection molding pipe is communicated with the injection pipe, the positioning block is placed in the containing groove, the stator piece drives the connecting shaft to enter the positioning hole, the fixed mold drives the fixed mold cavity, the semicircular block enters the semicircular groove, and the injection molding machine injects liquid rubber liquid into the injection pipe and the runner at a high speed; the liquid glue solution is filled in the placing groove to wrap the stator part and the stator sleeve, an insulation protection effect is achieved, the stator part rubber-coated part can be taken out after the mold is opened, injection molding protection can be performed on the outside of the stator, the stator part and the stator sleeve can be fully wrapped and can be in close fit contact, and the production efficiency is improved. And the insulation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a motor stator rubber-coated injection mold. Background Art

[0002] The motor stator is an important component of motors such as generators and starters. The stator is an important part of the electric motor. The stator consists of three parts: the stator core, the stator winding and the frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by the magnetic lines of force in the rotating magnetic field to generate (output) current. Injection molding and overmolding of the core is a common motor component protection process. Injection molding and overmolding provide effective insulation protection for the core, which helps prevent the core from direct contact with moisture, dust and other pollutants in the external environment, thereby preventing the insulation performance of the motor components from deteriorating. Injection molding and overmolding can prevent corrosion on the core surface to a certain extent, which can extend the service life of the core. Injection molding and overmolding can provide additional mechanical protection from external shock and vibration, improve the durability and reliability of the motor, and reduce noise and vibration: the injection molding and overmolding material itself usually has good insulation properties, so it can improve the overall insulation performance of the motor and reduce the risk of insulation breakdown.

[0003] Regarding the above-mentioned related technologies, the applicant believes that: after the surface of the stator is evenly wound with copper wire, uneven shapes will appear at both ends of the stator. When the rubber-coated end cover after injection molding cannot fit tightly with the end of the stator, its insulation effect will be affected.

[0004] To this end, the utility model provides a motor stator encapsulated injection mold to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a motor stator encapsulated injection mold to solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a motor stator encapsulated injection mold, comprising a fixed mold base, an injection molding component is installed inside the fixed mold base, and a clamping component is installed on the top wall of the fixed mold base;

[0007] The injection molding component includes a fixed mold, a fixed mold cavity is provided on the top wall of the fixed mold base, semicircular grooves are provided at the four corners of the outer wall of the fixed mold, semicircular blocks are fixedly connected to the four corners of the outer wall of the fixed mold, a sealing groove is provided on the top wall of the fixed mold base, a placement groove is provided on the top wall of the fixed mold, a positioning block is fixedly connected to the inner wall of the placement groove, a positioning hole is provided on the top wall of the positioning block, a stator component is provided on the top wall of the positioning block, a connecting shaft is installed inside the stator component, a stator sleeve is installed on the top end of the connecting shaft, and a flow channel is provided on the top wall of the fixed mold.

[0008] Through the above technical solution and the arrangement of the injection molding assembly, the stator component and the stator sleeve can be injection-molded and wrapped with liquid glue, thereby having good insulation during use.

[0009] Furthermore, the outer walls of the fixed mold are fitted with the inner walls of the fixed mold cavity, the outer walls of the semicircular blocks are fitted with the inner walls of the corresponding semicircular grooves, the bottom end of the connecting shaft is fitted with the inner wall of the positioning hole, the stator sleeve is located in the inner wall of the placement groove, the flow channel is "L"-shaped, and the flow channel is connected to the fixed mold.

[0010] Through the above technical solution, the outer walls of the semicircular blocks are fitted with the inner walls of the corresponding semicircular grooves, which can limit and fix the fixed mold.

[0011] Furthermore, the mold clamping assembly includes a top seat, and the four corners of the bottom wall of the top seat are fixedly connected with ejector rods, and the bottom ends of the ejector rods are fixedly connected to the top wall of the fixed mold seat.

[0012] Through the above technical solution, the flow channel is mainly used for the flow of liquid glue.

[0013] Furthermore, the top wall of the top seat is installed with an electric push rod, the movable end of the electric push rod slides through the top seat and is fixedly connected to the movable mold, and the four corners of the top wall of the movable mold all slide through the corresponding push rods.

[0014] Through the above technical solution, the movable end of the electric push rod pushes the movable mold to slide on the outer wall of the push rod.

[0015] Furthermore, a sealing ring matching the sealing groove is fixedly connected to the bottom wall of the movable mold.

[0016] Through the above technical solution, the sealing ring and the sealing groove cooperate with each other, which can improve the connection sealing performance between the fixed mold and the movable mold.

[0017] Furthermore, a sealing block is fixedly connected to the bottom wall of the movable mold, and the specifications of the sealing block match the inner wall of the placement groove.

[0018] Through the above technical solution, the sealing block can seal the inner wall of the top of the placement groove to prevent the liquid glue from flowing out.

[0019] Furthermore, a shot tube is installed on the top wall of the movable mold, and the shot tube corresponds to the position of the runner and has matching specifications.

[0020] Through the above technical solution, the liquid glue is injected into the injection tube by the injection molding machine and enters the placement tank.

[0021] Furthermore, the four corners of the outer wall of the fixed mold base are fixedly connected with mounting seats, and the top wall of the mounting seat is threadedly installed with bolts.

[0022] Through the above technical solution, the fixed mold base can be installed on the injection molding machine under the cooperation of the mounting base and the bolts.

[0023] Beneficial effects

[0024] The utility model provides a motor stator encapsulation injection mold. Compared with the existing technology, it has the following advantages:

[0025] (1) The motor stator rubber coating injection mold is connected to the shot tube through the injection tube, the positioning block is placed in the placement groove, the stator drives the connecting shaft into the positioning hole, the fixed mold is driven into the fixed mold cavity, the semicircular block enters the semicircular groove, the electric push rod drives the movable mold to slide along the push rod to drive the sealing block into the placement groove and be installed on the top wall of the stator sleeve, the movable mold drives the sealing ring into the inside of the sealing groove, the shot tube enters the inner wall of the flow channel and is connected, the injection molding machine injects liquid glue into the shot tube and the flow channel at high speed, so that the liquid glue fills the inside of the placement groove and wraps the stator and the stator sleeve, which plays a role in insulation protection. After the mold is opened, the stator rubber coating can be taken out so that the outside of the stator can be injection-molded for protection, so that the stator and the stator sleeve can be fully wrapped and can be closely fitted and contacted, which has the effect of improving its insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is the main view of the external structure of the utility model;

[0027] Figure 2 It is a front view of the internal structure of the utility model;

[0028] Figure 3 It is an exploded view of the internal structure of the injection molding component of the present invention.

[0029] In the figure, 1 is the fixed mold base; 2 is the mounting base; 3 is the bolt; 4 is the injection molding component; 41 is the sealing groove; 42 is the semicircular groove; 43 is the fixed mold cavity; 44 is the semicircular block; 45 is the fixed mold; 46 is the placement groove; 47 is the positioning block; 48 is the positioning hole; 49 is the stator component; 410 is the connecting shaft; 411 is the stator sleeve; 412 is the runner; 5 is the mold clamping component; 51 is the ejector pin; 52 is the ejector base; 53 is the movable mold; 54 is the electric push rod; 55 is the sealing ring; 56 is the sealing block; 57 is the injection tube. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1:

[0032] See also Figure 1-3 , a motor stator encapsulated injection mold, comprising a fixed mold base 1, an injection molding component 4 is installed inside the fixed mold base 1, and a clamping component 5 is installed on the top wall of the fixed mold base 1;

[0033] The injection molding assembly 4 includes a fixed mold 45, a fixed mold cavity 43 is formed on the top wall of the fixed mold base 1, and semicircular grooves 42 are formed on the four corners of the outer wall of the fixed mold cavity 43. Semicircular blocks 44 are fixedly connected to the four corners of the outer wall of the fixed mold 45. A sealing groove 41 is formed on the top wall of the fixed mold base 1, a placement groove 46 is formed on the top wall of the fixed mold 45, and a positioning block 47 is fixedly connected to the inner wall of the placement groove 46. A positioning hole 48 is formed on the top wall of the positioning block 47, and a stator member 49 is provided on the top wall of the positioning block 47. A connecting shaft 410 is installed inside the stator member 49, and a stator sleeve 411 is installed on the top end of the connecting shaft 410. A flow channel 412 is formed on the top wall of the fixed mold 45;

[0034] In the embodiment of the present utility model, the purpose of this arrangement is that the arrangement of the injection molding component 4 can allow an external injection molding machine to inject liquid glue into the injection tube 57 and the inside of the flow channel 412 at high speed, and then the stator component 49 and the stator sleeve 411 can be injection-molded and wrapped, thereby having the effect of improving the insulation effect. The mutual cooperation of the semicircular groove 42 and the semicircular block 44 has the function of positioning the fixed mold 45 to prevent movement, thereby avoiding position displacement when the mold is closed.

[0035] Example 2:

[0036] See also Figure 1-3 , this embodiment provides a technical solution based on the first embodiment: the outer wall of the fixed mold 45 is in contact with the inner wall of the fixed mold cavity 43, the outer wall of the semicircular block 44 is in contact with the inner wall of the corresponding semicircular groove 42, the bottom end of the connecting shaft 410 is in contact with the inner wall of the positioning hole 48, the stator sleeve 411 is located in the inner wall of the placement groove 46, the flow channel 412 is "L" shaped, and the flow channel 412 is connected to the fixed mold 45. The mold clamping assembly 5 includes a top seat 52, and the four corners of the bottom wall of the top seat 52 are fixedly connected to the ejector rod 51. The bottom end of the ejector rod 51 is fixedly connected to the top wall of the fixed mold seat 1, and the top wall of the top seat 52 is installed with an electric push rod. Rod 54, the movable end of the electric push rod 54 slides through the top seat 52 and is fixedly connected to the movable mold 53. The four corners of the top wall of the movable mold 53 slide through the corresponding push rods 51. The bottom wall of the movable mold 53 is fixedly connected to a sealing ring 55 that matches the sealing groove 41. The bottom wall of the movable mold 53 is fixedly connected to a sealing block 56. The specifications of the sealing block 56 match the inner wall of the placement groove 46. The top wall of the movable mold 53 is installed with a shooting tube 57. The shooting tube 57 corresponds to the position of the flow channel 412 and the specifications match. The four corners of the outer wall of the fixed mold base 1 are fixedly connected to the mounting base 2, and the top wall of the mounting base 2 is screwed with bolts 3;

[0037] In the embodiment of the present utility model, the purpose of this setting is that the setting of the mold clamping assembly 5 can increase the connection sealing between the movable mold 53 and the fixed mold 45 through the mutual cooperation of the sealing ring 55 and the sealing groove 41, and when in use, the position of the top of the placement groove 46 is sealed by the sealing block 56 to prevent liquid glue from flowing out from the top of the placement groove 46 during injection molding, and has good sealing performance.

[0038] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] During operation, the entire device is first installed on the injection molding machine through the cooperation of the mounting base 2 and the bolt 3, and the injection tube of the injection molding machine is connected to the top of the shot tube 57. The positioning block 47 is first placed into the inner wall of the placement groove 46, and the movable stator 49 drives the bottom end of the connecting shaft 410 to be inserted into the inner wall of the positioning hole 48. The movable fixed mold 45 is driven to be placed into the inner wall of the fixed mold cavity 43, and the semicircular block 44 enters the inner wall of the semicircular groove 42. The electric push rod 54 is connected through the external controller to push the movable mold 53 to slide along the outer wall of the push rod 51. , and then drives the sealing block 56 into the inner wall of the placement groove 46 and is installed on the top wall of the stator sleeve 411. At the same time, the movable mold 53 drives the sealing ring 55 into the interior of the sealing groove 41, and the shooting tube 57 enters and communicates with the inner wall of the flow channel 412. Then, the liquid glue is injected into the shooting tube 57 and the flow channel 412 at a high speed through the injection molding tube of the injection molding machine, so that the liquid glue fills the interior of the placement groove 46 and wraps the stator component 49 and the stator sleeve 411, which plays a role in insulation protection. After the mold is opened, the rubber-coated part of the stator component 49 can be taken out.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor stator overmolding injection mold, comprising a fixed mold base (1), characterized in that: An injection molding component (4) is installed inside the fixed mold base (1), and a clamping component (5) is installed on the top wall of the fixed mold base (1); The injection molding assembly (4) includes a fixed mold (45), a fixed mold cavity (43) is provided on the top wall of the fixed mold base (1), semicircular grooves (42) are provided at four corners of the outer wall of the fixed mold cavity (43), and semicircular blocks (44) are fixedly connected to the four corners of the outer wall of the fixed mold (45). A sealing groove (41) is provided on the top wall of the fixed mold base (1), a placement groove (46) is provided on the top wall of the fixed mold (45), and a positioning block (47) is fixedly connected to the inner wall of the placement groove (46), a positioning hole (48) is provided on the top wall of the positioning block (47), and a stator component (49) is provided on the top wall of the positioning block (47), a connecting shaft (410) is installed inside the stator component (49), and a stator sleeve (411) is installed at the top end of the connecting shaft (410), and a flow channel (412) is provided on the top wall of the fixed mold (45).

2. The motor stator overmolding injection mold according to claim 1, characterized in that: The outer wall of the fixed mold (45) is in contact with the inner wall of the fixed mold cavity (43); the outer wall of the semicircular block (44) is in contact with the inner wall of the corresponding semicircular groove (42); the bottom end of the connecting shaft (410) is in contact with the inner wall of the positioning hole (48); the stator sleeve (411) is located in the inner wall of the placement groove (46); the flow channel (412) is "L"-shaped, and the flow channel (412) is connected to the fixed mold (45).

3. The motor stator overmolding injection mold according to claim 1, characterized in that: The mold clamping assembly (5) comprises a top seat (52), the four corners of the bottom wall of the top seat (52) are fixedly connected to push rods (51), and the bottom ends of the push rods (51) are fixedly connected to the top wall of the fixed mold seat (1).

4. The motor stator overmolding injection mold according to claim 3, characterized in that: The top wall of the top seat (52) is installed with an electric push rod (54), and the movable end of the electric push rod (54) slides through the top seat (52) and is fixedly connected to the movable mold (53), and the four corners of the top wall of the movable mold (53) slide through the corresponding push rods (51).

5. The motor stator overmolding injection mold according to claim 4, characterized in that: The bottom wall of the movable mold (53) is fixedly connected with a sealing ring (55) that matches the sealing groove (41).

6. The motor stator overmolding injection mold according to claim 4, characterized in that: The bottom wall of the movable mold (53) is fixedly connected with a sealing block (56), and the specifications of the sealing block (56) match the inner wall of the placement groove (46).

7. The motor stator overmolding injection mold according to claim 4, characterized in that: The top wall of the movable mold (53) is provided with an injection tube (57), and the injection tube (57) corresponds to the position of the flow channel (412) and has matching specifications.

8. The motor stator overmolding injection mold according to claim 1, characterized in that: The four corners of the outer wall of the fixed mold base (1) are fixedly connected with mounting bases (2), and the top wall of the mounting base (2) is threadedly mounted with bolts (3).

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